Preconcentration of cadmium with Saccharomyces cerevisiae and determination in river water using inductively coupled plasma optical emission spectrometry

Química Nova

Menegário, Amauri Antonio¹  Universidade de São Paulo, São Carlos, Brasil¹  Tonello, Paulo Sergio¹  Biscaro, Priscila Andreoli¹  Universidade Estadual Paulista, Araraquara, Brasil¹  Caldorin, Rogério¹  Universidade Estadual Paulista, Rio Claro, Brasil¹ 

关键词: solid phase extraction;    cadmium;    yeast.;   

DOI  :  10.1590/S0100-40422007000200016

学科分类：化学（综合）

来源: Sociedade Brasileira de Quimica

【 摘 要 】

A preconcentration method based on the use of Saccharomyces cerevisiae as sorbent material is proposed for the determination of Cd(II) in river water. The solid phase extraction was performed in batch mode and the determination of the analyte in the solid phase was easily carried out by introducing a slurry of the yeast (0.0625 g / 2.5 mL) directly into the ICP OES. A limit of detection of 0.11 µg L-1 and a sample throughput in the range of 4 - 54 sample h-1 were obtained. Determinations of cadmium in a certified sample and in real river water samples were in excellent agreement with the expected values.

【 授权许可】

Unknown